Relationship Between Li/Ce Concentration and the Luminescence Properties of Codoped Gd3(Ga, Al)5O12:Ce

Masao Yoshino; Karol Bartosiewicz; Takahiko Horiai; Kei Kamada; Akihiro Yamaji; Yasuhiro Shoji; Yuui Yokota; Shunsuke Kurosawa; Yuji Ohashi; Hiroki Sato; Satoshi Toyoda; Romana Kucerkova; Vitezslav Jary; Martin Nikl; Akira Yoshikawa

doi:10.1002/pssb.201900504

Relationship Between Li/Ce Concentration and the Luminescence Properties of Codoped Gd₃(Ga, Al)₅O₁₂:Ce

Masao Yoshino, Karol Bartosiewicz, Takahiko Horiai, Kei Kamada, Akihiro Yamaji, Yasuhiro Shoji, Yuui Yokota, Shunsuke Kurosawa, Yuji Ohashi, Hiroki Sato, Satoshi Toyoda, Romana Kucerkova, Vitezslav Jary, Martin Nikl, Akira Yoshikawa

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Li⁺ codoping of Gd₃(Ga, Al)₅O₁₂:Ce (GGAG:Ce) single crystals induces the acceleration of scintillation decay time. However, its effect on the scintillation properties of GGAG:Ce remains poorly understood. Herein, the relationship between Ce/Li concentration and scintillation properties is investigated. GGAG crystals with a range of Ce and Li concentrations are grown by the Czochralski method and the scintillation decay and light output of GGAG:Ce, Li are measured. The results show comparable or improved performance compared with conventional scintillators. In optical absorption and photoluminescence (PL) measurements, the conversion of the stable Ce³⁺ to Ce⁴⁺ is not observed in a clear manner in GGAG:Ce samples with variable Li concentration. Instead, some defect-related absorption seems to appear. Temperature dependence of PL decay for samples with variable Ce concentration is also evaluated. A shift of the luminescence quenching temperature is observed for GGAG samples with >0.2% Ce.

Original language	English
Article number	1900504
Journal	Physica Status Solidi (B): Basic Research
Volume	257
Issue number	8
DOIs	https://doi.org/10.1002/pssb.201900504
Publication status	Published - 2020 Aug 1

Keywords

Gd3(Ga, Al)5O12
Li codoping
concentration effects
scintillators
single crystals

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10.1002/pssb.201900504

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Yoshino, M., Bartosiewicz, K., Horiai, T., Kamada, K., Yamaji, A., Shoji, Y., Yokota, Y., Kurosawa, S., Ohashi, Y., Sato, H., Toyoda, S., Kucerkova, R., Jary, V., Nikl, M., & Yoshikawa, A. (2020). Relationship Between Li/Ce Concentration and the Luminescence Properties of Codoped Gd₃(Ga, Al)₅O₁₂:Ce. Physica Status Solidi (B): Basic Research, 257(8), Article 1900504. https://doi.org/10.1002/pssb.201900504

@article{c6d4ca72dace45509c6b7b8842304da3,

title = "Relationship Between Li/Ce Concentration and the Luminescence Properties of Codoped Gd3(Ga, Al)5O12:Ce",

abstract = "Li+ codoping of Gd3(Ga, Al)5O12:Ce (GGAG:Ce) single crystals induces the acceleration of scintillation decay time. However, its effect on the scintillation properties of GGAG:Ce remains poorly understood. Herein, the relationship between Ce/Li concentration and scintillation properties is investigated. GGAG crystals with a range of Ce and Li concentrations are grown by the Czochralski method and the scintillation decay and light output of GGAG:Ce, Li are measured. The results show comparable or improved performance compared with conventional scintillators. In optical absorption and photoluminescence (PL) measurements, the conversion of the stable Ce3+ to Ce4+ is not observed in a clear manner in GGAG:Ce samples with variable Li concentration. Instead, some defect-related absorption seems to appear. Temperature dependence of PL decay for samples with variable Ce concentration is also evaluated. A shift of the luminescence quenching temperature is observed for GGAG samples with >0.2% Ce.",

keywords = "Gd3(Ga, Al)5O12, Li codoping, concentration effects, scintillators, single crystals",

author = "Masao Yoshino and Karol Bartosiewicz and Takahiko Horiai and Kei Kamada and Akihiro Yamaji and Yasuhiro Shoji and Yuui Yokota and Shunsuke Kurosawa and Yuji Ohashi and Hiroki Sato and Satoshi Toyoda and Romana Kucerkova and Vitezslav Jary and Martin Nikl and Akira Yoshikawa",

note = "Funding Information: This work was supported by JSPS KAKENHI Early‐Career Scientists Grant Number JP19K17191. Partial support of the Operational Programme Research, Development, and Education financed by European Structural and Investment Funds and the Czech Ministry of Education, Youth and Sports (project no. SOLID21 CZ.02.1.01/0.0/0.0/16_019/0000760) is gratefully acknowledged. The authors thank Esther Posner, Ph.D., from Edanz Group ( www.edanzediting.com/ac ) for editing a draft of this manuscript. Publisher Copyright: {\textcopyright} 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2020",

month = aug,

day = "1",

doi = "10.1002/pssb.201900504",

language = "English",

volume = "257",

journal = "Physica Status Solidi (B): Basic Research",

issn = "0370-1972",

publisher = "Wiley-VCH Verlag",

number = "8",

}

Yoshino, M, Bartosiewicz, K, Horiai, T , Kamada, K , Yamaji, A, Shoji, Y, Yokota, Y , Kurosawa, S , Ohashi, Y , Sato, H, Toyoda, S, Kucerkova, R, Jary, V, Nikl, M & Yoshikawa, A 2020, 'Relationship Between Li/Ce Concentration and the Luminescence Properties of Codoped Gd₃(Ga, Al)₅O₁₂:Ce', Physica Status Solidi (B): Basic Research, vol. 257, no. 8, 1900504. https://doi.org/10.1002/pssb.201900504

TY - JOUR

T1 - Relationship Between Li/Ce Concentration and the Luminescence Properties of Codoped Gd3(Ga, Al)5O12:Ce

AU - Yoshino, Masao

AU - Bartosiewicz, Karol

AU - Horiai, Takahiko

AU - Kamada, Kei

AU - Yamaji, Akihiro

AU - Shoji, Yasuhiro

AU - Yokota, Yuui

AU - Kurosawa, Shunsuke

AU - Ohashi, Yuji

AU - Sato, Hiroki

AU - Toyoda, Satoshi

AU - Kucerkova, Romana

AU - Jary, Vitezslav

AU - Nikl, Martin

AU - Yoshikawa, Akira

N1 - Funding Information: This work was supported by JSPS KAKENHI Early‐Career Scientists Grant Number JP19K17191. Partial support of the Operational Programme Research, Development, and Education financed by European Structural and Investment Funds and the Czech Ministry of Education, Youth and Sports (project no. SOLID21 CZ.02.1.01/0.0/0.0/16_019/0000760) is gratefully acknowledged. The authors thank Esther Posner, Ph.D., from Edanz Group ( www.edanzediting.com/ac ) for editing a draft of this manuscript. Publisher Copyright: © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2020/8/1

Y1 - 2020/8/1

N2 - Li+ codoping of Gd3(Ga, Al)5O12:Ce (GGAG:Ce) single crystals induces the acceleration of scintillation decay time. However, its effect on the scintillation properties of GGAG:Ce remains poorly understood. Herein, the relationship between Ce/Li concentration and scintillation properties is investigated. GGAG crystals with a range of Ce and Li concentrations are grown by the Czochralski method and the scintillation decay and light output of GGAG:Ce, Li are measured. The results show comparable or improved performance compared with conventional scintillators. In optical absorption and photoluminescence (PL) measurements, the conversion of the stable Ce3+ to Ce4+ is not observed in a clear manner in GGAG:Ce samples with variable Li concentration. Instead, some defect-related absorption seems to appear. Temperature dependence of PL decay for samples with variable Ce concentration is also evaluated. A shift of the luminescence quenching temperature is observed for GGAG samples with >0.2% Ce.

AB - Li+ codoping of Gd3(Ga, Al)5O12:Ce (GGAG:Ce) single crystals induces the acceleration of scintillation decay time. However, its effect on the scintillation properties of GGAG:Ce remains poorly understood. Herein, the relationship between Ce/Li concentration and scintillation properties is investigated. GGAG crystals with a range of Ce and Li concentrations are grown by the Czochralski method and the scintillation decay and light output of GGAG:Ce, Li are measured. The results show comparable or improved performance compared with conventional scintillators. In optical absorption and photoluminescence (PL) measurements, the conversion of the stable Ce3+ to Ce4+ is not observed in a clear manner in GGAG:Ce samples with variable Li concentration. Instead, some defect-related absorption seems to appear. Temperature dependence of PL decay for samples with variable Ce concentration is also evaluated. A shift of the luminescence quenching temperature is observed for GGAG samples with >0.2% Ce.

KW - Gd3(Ga, Al)5O12

KW - Li codoping

KW - concentration effects

KW - scintillators

KW - single crystals

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U2 - 10.1002/pssb.201900504

DO - 10.1002/pssb.201900504

M3 - Article

AN - SCOPUS:85076729558

SN - 0370-1972

VL - 257

JO - Physica Status Solidi (B): Basic Research

JF - Physica Status Solidi (B): Basic Research

IS - 8

M1 - 1900504

ER -

Relationship Between Li/Ce Concentration and the Luminescence Properties of Codoped Gd₃(Ga, Al)₅O₁₂:Ce

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